WO2008016025A1 - Dispositif de commande d'admission d'air - Google Patents

Dispositif de commande d'admission d'air Download PDF

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Publication number
WO2008016025A1
WO2008016025A1 PCT/JP2007/064934 JP2007064934W WO2008016025A1 WO 2008016025 A1 WO2008016025 A1 WO 2008016025A1 JP 2007064934 W JP2007064934 W JP 2007064934W WO 2008016025 A1 WO2008016025 A1 WO 2008016025A1
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WO
WIPO (PCT)
Prior art keywords
intake
passage
passages
discharge
throttle
Prior art date
Application number
PCT/JP2007/064934
Other languages
English (en)
Japanese (ja)
Inventor
Yoshihiro Fujita
Michihiko Aoshima
Osamu Miura
Hiroto Uchi
Satoshi Ando
Original Assignee
Mikuni Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mikuni Corporation filed Critical Mikuni Corporation
Publication of WO2008016025A1 publication Critical patent/WO2008016025A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • F02D9/1095—Rotating on a common axis, e.g. having a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/1055—Details of the valve housing having a fluid by-pass

Definitions

  • the present invention relates to an intake control device that controls the intake air amount of a multi-cylinder engine, and more particularly, to an intake valve that integrally includes a control valve unit (ISC) that controls the air amount during idle operation of a multi-cylinder engine. It relates to a control device.
  • ISC control valve unit
  • a throttle body that defines two intake passages, a butterfly throttle valve disposed in each intake passage, 2 A throttle shaft arranged so as to pass through two intake passages to support two throttle valves so as to be openable and closable, an idle air introduction passage formed between the two intake passages and a throttle rod, and an idle air introduction passage.
  • the idle air introduction passage and the two idle air distribution passages formed in the throttle body so as to communicate with each intake passage! It is known to have a stepping motor attached to the control valve and a control valve that also has a valve body force (for example, For example, see Patent Document 1).
  • a desired idle air is supplied to each intake passage from the idle air introduction passage through the idle air distribution passage by driving the stepping motor and appropriately controlling the lift amount of the valve body of the control valve. The amount is getting led.
  • control valve valve element
  • the idle air introduction passage and the idle air distribution passage are integrally formed in the throttle body.
  • this intake control device is applied to a four-cylinder engine, two intake control devices are combined and used, so two control valves are required and the number of parts increases. In addition, if two control valves are provided, there is a risk of causing an opening / closing operation between the control valves, which is not preferable.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004_211612
  • the present invention has been made in view of the circumstances of the above-described conventional apparatus, and its purpose is to simplify the structure, reduce the size, reduce the cost, improve the wearability, and the like.
  • a control valve unit (ISC) that can evenly distribute and supply idle air (air required during idle operation) to three or more multiple intake passages.
  • An object of the present invention is to provide an intake control device suitable for a multi-cylinder engine.
  • An intake control device includes a throttle body having a plurality of throttle valves for defining a plurality of intake passages and opening and closing the intake passages, and an upstream side of the intake passage by bypassing the slot valve during idle operation.
  • a control valve unit that guides air downstream from the housing, wherein the control valve unit defines a plurality of discharge passages for discharging air through the suction passage and the suction passage so as to guide the air to the plurality of suction passages, respectively.
  • a control valve for controlling the amount of air flowing from the suction passage to the discharge passage, and the throttle body includes a plurality of introduction passages formed in the throttle body to guide the air passing through the control valve unit to the plurality of intake passages.
  • a part of the plurality of discharge passages is directly communicated with the corresponding introduction passage, and a part other than the part of the plurality of discharge passages is connected.
  • a part other than the part of the plurality of discharge passages is connected.
  • control is performed in an intake system formed by an intake passage and a throttle valve communicating with each cylinder of a multi-cylinder engine and a single surge tank (or an air cleaner, an outside air introduction duct) that connects each intake passage.
  • the valve unit appropriately controls the flow rate, and during idle operation, the air force S upstream from the slot valve is guided to the intake passage of the control valve unit, and then distributed evenly to the plurality of discharge passages. The Then, the air discharged from a part of the discharge passages is directly guided to the introduction passage of the throttle body, and the air discharged from other discharge passages other than the part is connected to the throttle body via a pipe. Are then led to the corresponding intake passages downstream of the throttle valve.
  • control valve unit that controls the amount of air during idling distributes the air for guiding itself to the intake passages downstream of the throttle valve, and for the introduction passage of the throttle body. Since the housing is directly connected to the throttle body so that some discharge passages are in direct communication and other discharge passages are connected via piping, intake control with three or more intake passages in particular In the device, it is possible to improve the assembling property, the wearing property, etc. while achieving simplification, miniaturization, cost reduction and the like.
  • the throttle body includes a throttle shaft that supports a plurality of throttle valves so as to be openable and closable, and a drive mechanism that drives the throttle shaft.
  • a drive source having a valve body for opening and closing the communication port of the suction passage and the discharge passage and a drive shaft for reciprocating the valve body, and the throttle shaft and the drive shaft are arranged substantially in parallel. Can be adopted.
  • the throttle shaft that supports the plurality of throttle valves arranged in the intake passages and the drive shaft that drives the valve body of the control valve unit are arranged substantially in parallel.
  • the device can be reduced in size while consolidating parts.
  • the plurality of discharge passages are formed on one side of the discharge passages so as to extend in a direction substantially perpendicular to the extension direction of the intake passage, with the control valve interposed therebetween.
  • the discharge passage on one side is directly connected to the introduction passage of the throttle body, and the discharge passage on the other side is connected to the introduction passage of the throttle body via a pipe.
  • a configuration can be employed.
  • the housing of the control valve unit is positioned so that the plurality of discharge passages are positioned on both sides of the control valve and extends in a direction substantially perpendicular to the extension direction of the intake passage, and the discharge passage on one side is defined.
  • the force S is used to further improve the outfitting of the equipment.
  • the discharge passage on one side and the discharge passage on the other side are substantially parallel to the extending direction of the plurality of intake passages and in the same plane substantially perpendicular to the arrangement direction.
  • a configuration in which each passage center line is formed can be employed.
  • the introduction passage that communicates directly with the discharge passage can be formed so as to be arranged in the extending direction of the intake passage between the intake passage and the intake passage, the separation distance between the intake passages is increased. Even with a relatively short throttle body, the introduction passage can be easily formed in a limited area, and a connecting surface (flange) for connecting the housing of the control valve unit in a limited space Power S can be secured.
  • control valve unit may be configured to be disposed along the axial direction of the throttle shaft so as to be substantially opposed to the drive mechanism.
  • the throttle valve includes a main valve disposed on the downstream side in the intake passage and a sub-valve disposed on the upstream side, and the throttle shaft supports the main valve so as to be opened and closed.
  • the drive mechanism includes a main drive mechanism that rotationally drives the main shaft and a sub drive mechanism that rotationally drives the sub shaft, and the control valve unit is configured to extend the intake passage in the extending direction.
  • a configuration arranged between the main valve and the sub valve can be adopted.
  • the main shaft is rotationally driven by the main drive mechanism, the plurality of main valves are driven to open and close, the sub shaft is rotationally driven by the sub drive mechanism, and the plurality of sub valves are driven to open and close.
  • control valve unit is disposed between the main shaft and the subshaft in the extending direction of the intake passage, it is easy to process the introduction passage and the like formed in the throttle body.
  • the housing includes a suction-side connector pipe communicating with the suction passage and a housing. And a discharge-side connector pipe communicating with a portion other than a part of the plurality of discharge passages, the suction-side connector pipe being bent so as to open toward the substantially upstream side of the intake passage, and the discharge-side connector pipe being Further, it is possible to adopt a configuration that is formed to be bent so as to open in a direction that forms a predetermined angle with respect to the extending direction of the suction passage.
  • the pipe (rubber hose, etc.) connected to the discharge side connector pipe of the control valve unit is as short as possible along the outer wall of the throttle body in the connector pipe provided in the introduction passage of the throttle body. It can be easily connected with the piping layout, and the piping connected to the suction side connector pipe can be easily connected to the intake passage (surge tank, etc.) upstream of the throttle valve with a simple piping layout. it can.
  • control valve unit may be configured to be joined to a position biased to one side between adjacent intake passages among the plurality of intake passages.
  • the plurality of introduction passages directly communicating with the discharge passage provided in the housing of the control valve unit can be simplified and can be easily processed.
  • control valve knit adopts a configuration in which the control valve knit is connected to the discharge passage and the introduction passage of the throttle body via connecting members that are fitted at both ends. Monkey.
  • the discharge passage and the introduction passage can be positioned with high accuracy, and the airtightness (sealability) of the connection region can be improved, and the control valve unit (housing) and the throttle body can be connected. Can be easily performed.
  • idle air (during idle operation) is provided to a plurality of intake passages while achieving simplification of structure, miniaturization, cost reduction, improvement of wearability, and the like.
  • a control valve unit (ISC) that can evenly distribute and supply the required air) is integrated, and an intake control device that is particularly suitable for multi-cylinder engines with three or more cylinders can be obtained.
  • FIG. 1 is a front view showing an embodiment of an intake air control apparatus according to the present invention.
  • FIG. 2 is a bottom view of the intake air control device shown in FIG. [[FIG. 33]] Longitudinal cross-sectional view showing intake and intake air passages and lead-in / in passages of the intake and intake air control control device shown in FIG. FIG. .
  • FIG. 14 is a configuration diagram showing a drive driving mechanism mechanism of the intake / intake air control control device shown in FIG. 11. .
  • FIG. 2 is a longitudinal and longitudinal sectional view including an axis line of an intake / intake air passageway showing .
  • FIG. 11 is a longitudinal sectional view taken along the line EEll—EE11 in FIG. 11. .
  • FIG. 2 is a top plan view showing the control / control valve valve unit to be used. .
  • FIG. 3 is a bottom and bottom view showing the control / control valve valve unit to be used. .
  • FIG. 3 is a front elevation view showing a control / control valve valve unit to be operated. .
  • FIG. 88 is a longitudinal sectional view of the control valve control unit. .
  • FIG. 88 A cross-sectional view taken along EE22 in FIG. 88; .
  • this intake control device includes four throttle valves 10 defining four intake passages 11 and four main valves as butterfly fly throttle valves arranged in the respective intake passages 11. 20, in each intake passage 11!
  • the throttle body 10 is formed by fastening two body halves 10a, 10b formed in advance in two using an aluminum material or the like with bolts B, Four intake passages 11 connected to communicate with the intake port of the 4-cylinder engine 11, upstream connection portion l la, downstream connection portion l lb, bearing portion 12 that rotatably supports the main shaft 40, sub Bearing section 13 that rotatably supports shaft 50, cover section 14 that holds and accommodates drive mechanisms 60 and 70, coupling section 15 that directly couples control valve unit 100, and fitting section that fits connector pipe 140 15 'and four introduction passages 16, 17, 18, 19 and the like that communicate with the intake passage 11 downstream of the main valve 20 to introduce air during idle operation.
  • the four intake passages 11 are formed so that their respective axes S 1 are substantially parallel to each other and located in the same plane.
  • the bearing portion 12 defines a bearing hole that penetrates the downstream side of the four intake passages 11 in a direction perpendicular to the axis S1, and rotates the main shaft 40 having the axis S2. It is designed to support it freely.
  • the bearing 13 defines a bearing hole that penetrates the upstream side of the four intake passages 11 in a direction perpendicular to the axis S1, and rotates the sub shaft 50 having the axis S3. It is designed to support independence.
  • the coupling portion 15 is located at a position deviated by a predetermined distance on the right side between two adjacent intake passages 11 on the right side, and in the direction of the axis S1. Formed in the region between the shaft 40 and the sub-shaft 50, the upstream ends of the introduction passages 16 and 17 are opened, and the fitting hole 15 a for fitting the connecting member 110, the coupling surface 15 b, screw hole (not shown), etc. It is formed by.
  • the fitting portion 15 ′ is formed in a region between the two intake passages 11 on the left side, and opens the upstream ends of the introduction passages 18 and 19, and also connects the connector pipe 140. It comes to fit and join!
  • the introduction passages 16, 17, 18, and 19 bypass the main valve 20 and the sub valve 30 from the intake air at the time of idle operation supplied by the control valve unit 100 and are distributed evenly. It is introduced from the upstream side to the downstream side.
  • the introduction passage 16 is substantially parallel to the ascending passage 16a and the axis SI extending upward from the coupling surface 15b in the region between the two intake passages 11 on the right side.
  • a horizontal passage 16b extending downstream, and a downward passage 16c extending obliquely downward and downstream of the main valve 20 and opening into one intake passage 11! /
  • An introduction passage 17 As shown in FIGS. 1, 3, and 6, it extends obliquely upward from the coupling surface 15b in the region between the two right intake passages 11 and upstream of the ascending passage 16a in the direction of the axis S1.
  • the introduction passage 18 includes a rising passage 18a extending in an upward direction from the fitting portion 15 ', an axis SI, and a region between the two intake passages 11 on the left side. It is formed by a horizontal passage 18b extending substantially in parallel to the downstream side, and a downward passage 18c extending obliquely downward and extending downstream from the main valve 20 and opening into one intake passage 11! / RU
  • the introduction passage 19 is a rising passage 19a extending upward from the fitting portion 15 'adjacent to the rising passage 18a in the region between the two intake passages 11 on the left side.
  • Horizontal passage 19b extending to the downstream side substantially parallel to the horizontal passage 18b (axis SI), extending obliquely downward and downstream of the main valve 20! /, And opening into the other intake passage 11
  • the lower passage 19c is formed.
  • the four main valves 20 are respectively arranged downstream of the four intake passages 11 and supported by the main shaft 40 so as to be opened and closed.
  • the four sub-valves 30 are respectively arranged upstream of the four intake passages 11 and supported by the main shaft 40 so as to be opened and closed.
  • the main shaft 40 connects two shafts in the central region of the apparatus, and the axis S 2 extends in a direction perpendicular to the axis S1 (extension direction) of the intake passage 11.
  • the bearing is fitted to the bearing portion 12 of the throttle body 10 and is rotatably supported.
  • the main shaft 40 is driven to rotate by a main drive mechanism 60 disposed in the central region so as to open and close the main valve 20.
  • the subshaft 50 is fitted to the bearing portion 13 of the throttle body 10 so as to have an axis S3 extending in a direction perpendicular to the axis S1 (extension direction) of the intake passage 11. Combined and supported rotatably.
  • the sub shaft 50 is rotationally driven by a sub drive mechanism 70 disposed in the central region so as to open and close the sub valve 30.
  • the main drive mechanism 60 includes a rotary drum 61 coupled so as to rotate integrally with the main shaft 40, one end hooked on the rotary drum 61, wound around a predetermined angle, and the like.
  • the end is formed by a wire 62 hooked on an operation lever (not shown), a return spring 63 returning the rotating drum 61 to the initial position, and the like.
  • the sub drive mechanism 70 meshes with a driven gear 71 coupled to rotate integrally with the sub shaft 50, an intermediate gear 72 meshed with the driven gear 71, and an intermediate gear 72.
  • Driving gear 73, stepping motor 74 that generates a rotational driving force by directly connecting the driving gear 73 Etc. are formed.
  • the sub shaft 50 rotates via the drive gear 73, the intermediate gear 72, and the driven gear 71, thereby opening and closing the sub valve 30. Yes.
  • the control valve unit 100 controls the amount of air during idle operation. As shown in FIGS. 1, 2, 4, and 6 to 9, the control valve unit 100 sucks air during idle operation.
  • a passage 101a, four discharge passages 101b that discharge air, a housing 101 that defines a communication passage 101c that communicates the suction passage 101a and the four discharge passages 101b, and the like, are provided in the housing 101 to open and close the communication passage 101c.
  • a valve body 102 as a control valve, a stepping motor 103 as a drive source, a suction side connector pipe 104 fitted in the suction passage 101a, a discharge side connector pipe 105 fitted in two discharge passages 101b, etc. .
  • the housing 101 is molded from an aluminum material or a resin material, and as shown in FIGS. 6 to 9, the suction passage 101a extends in the direction of the axis S4, and extends in the direction of the axis L in a plane perpendicular to the axis S4.
  • the four discharge passages 101b and the suction passage 101a are coaxially formed (extending in the direction of the axis S4), the communication passage 101c is coaxially connected to the communication passage 101c (adjacent to the direction of the axis S4) and the diameter is increased.
  • a recessed portion 101d is formed, and a flange 101e for directly connecting to the throttle body 10 is provided.
  • the four discharge passages 101b are symmetrical (so as to be symmetric with respect to the axis S4) so as to sandwich the communication passage 101c, that is, the valve body 102 from both sides.
  • the passage center line CL is formed in the same plane.
  • each passage extends in a direction substantially perpendicular to the extension direction (axis S1) of the intake passage 11 with the control valve unit 100 being directly connected to the throttle body 10, and In the same plane that is substantially parallel to the direction of extension of the passage 11 (axis S1) and substantially perpendicular to the direction of arrangement of the intake passages 11 (axis S2, S3), each passage has a center line CL. Yes.
  • the two discharge passages 101b that open upward are connected to the connecting portion.
  • the two discharge passages 101b functioning as one side (partial) discharge passages that are directly connected to the introduction passages 16 and 17 of the throttle body 10 by fitting the material 110 and are opened downward, Side connector pipe 105 (105a, 105b) is fitted, rubber hoses 120, 130 are connected, and the other side (other than part) discharge passage communicated with the introduction passages 18, 19 of the throttle body 10 Function.
  • the housing 101 of the control valve unit 100 has two discharges so as to extend in a direction substantially perpendicular to the extension direction (axis S1) of the intake passage 11 on both sides of the valve body 102.
  • the discharge passage 101b is defined so that the discharge passage 101b on one side (upper side) communicates directly with the introduction passages 16, 17 and the discharge passage 101b on the other side (lower side) passes through the rubber hoses 120 and 130.
  • 19 is connected directly to the throttle body 10 so that the assembling property of the housing 101 is further improved, and the overall equipment mounting property is further improved by the force S.
  • the four discharge passages 101b are in the same plane that is substantially parallel to the extending direction (axis S1) of the four intake passages 11 and substantially perpendicular to the arrangement direction. Therefore, the introduction passages 16 and 17 are arranged in the extending direction of the intake passage 11 (axis S1 direction) between the adjacent intake passages 11. It can be formed easily.
  • the separation distance between the intake passages 11 is relatively short! Even in the throttle body 10, the introduction passages 16, 17 can be easily formed in a limited area, and in a limited space. It is possible to easily secure a coupling surface 15 5b (flange) for coupling the housing 101 of the control valve unit 100.
  • the communication passage 101c defines four communication ports 101 that are radially opened and formed to communicate with the respective discharge passages 101b.
  • the communication passage 101c guides a cylindrical valve body 102, which will be described later, so as to be slidable in the direction of the axis S4 so as to open and close the four communication ports 101.
  • the air sucked into the suction passage 101a is guided from the communication passage 101c through the communication port 101 to the four discharge passages 101b, and the communication port 10 1 is opened and closed by the valve body 102.
  • the suction passage 101a is connected to the discharge passage 101a. The amount of air flowing to b is controlled.
  • the recess lOld is formed to house the stepping motor 103 and to position the stepping motor 103 at a predetermined position in the direction of the axis S4.
  • the flange 101e is used for fastening (fixing) the nozzle 101 of the control valve unit 100 to the coupling portion 15 of the throttle body 10.
  • the valve body 102 is screwed by the relationship between the drive shaft 103a of the stepping motor 103 and the male and female screws. Then, when the stepping motor 103 is activated and the drive shaft 103a rotates, the valve body 102 reciprocates in the direction of the axis S4 by the screw feed action, and the communication port 101 is opened / closed or the opening amount is adjusted appropriately to perform suction. The amount of air flowing evenly distributed from the passage 101a to the discharge passage 101b is controlled.
  • the drive shaft 103a (and the longitudinal direction of the stepping motor 103) for reciprocating the valve body 102 is disposed substantially parallel to the throttle shaft (the main shaft 40 and the sub shaft 50). The apparatus can be reduced in size while achieving the above.
  • the suction-side connector pipe 104 is connected to the suction passage of the housing 10.
  • the front end of the intake passage 11 is bent so as to open toward the upstream side, that is, obliquely downward.
  • a rubber hose RH (the downstream end portion thereof) is connected to the suction side connector pipe 104 so as to suck air from an intake passage (for example, a surge tank) upstream of the sub valve 30.
  • an intake passage for example, a surge tank
  • the discharge-side connector pipe 105 has a housing 1
  • the connector pipe 105a is formed to be bent so as to open toward the downstream side in the horizontal direction at an angle of approximately 45 degrees with respect to the extending direction of the suction passage 11 (axis S1).
  • the suction passage 11 is bent so as to open in the horizontal direction at an angle of approximately 90 degrees with respect to the extending direction of the suction passage 11 (axis S 1).
  • the suction-side connector pipe 104 is formed to be bent so as to open toward the substantially upstream side of the intake passage 11, and the discharge-side connector pipe 105 is formed in the extending direction (axis line) of the suction passage 11.
  • the rubber hose 120, 130 is formed on the outer wall of the throttle body 10 with respect to the connector pipe 140 provided on the throttle body 10 because it is bent so as to open at a predetermined angle with respect to the (SI direction).
  • the rubber hose RH connected to the suction side connector pipe 104 can be connected to the suction pipe (surge tank) upstream of the slot valve (main valve 20 and sub valve 30). Can be easily connected with a simple piping layout.
  • the two connecting members 110 have one end fitted into the two discharge passages 101b of the housing 101 and the other end of the throttle body 10.
  • the discharge passage 101b and the introduction passages 16, 17 are directly communicated with each other by being fitted into the fitting hole 15a. It should be noted that O-rings are fitted into both ends of the connecting member 110 to ensure airtightness (sealability).
  • connection member 110 By connecting through the connection member 110, the discharge passage 101b and the introduction passages 16, 17 can be positioned with high accuracy, and the airtightness (sealability) of the connection region can be improved.
  • the control valve unit 100 (housing 101) and the throttle body 10 can be connected easily.
  • the connector pipe 140 is fitted with a fitting portion 15 provided on the lower surface between the two intake passages 11 on the left side of the throttle body 10. It is formed from two connector types 140a and 140bi.
  • the connector pipe 140a is formed to be bent so as to open toward the downstream side in the horizontal direction at an angle of approximately 45 degrees with respect to the extending direction (axis S1) of the suction passage 11, and the connector pipe 140b is It is formed to be bent so as to open toward the downstream side in the horizontal direction parallel to the extension direction (axis S1) of the suction passage 11.
  • the rubber hose 120 is molded so as to extend in a horizontal direction substantially perpendicular to the direction of the axis S1 of the intake passage 11 as a whole, and one end portion thereof is formed. Connected to connector pipe 105a of discharge side connector pipe 105, other end is connector pipe 1 Connected to 40b.
  • the rubber hose 120 guides the air distributed and guided to the discharge passage 101b into one intake passage 11 of the two left intake passages 11! /,
  • the rubber hose 130 is molded so as to extend in a horizontal direction substantially perpendicular to the axis S1 direction of the intake passage 11 as a whole, and one end portion thereof is formed.
  • the discharge-side connector pipe 105 is connected to the connector pipe 105b, and the other end is connected to the connector pipe 140a.
  • the rubber hose 130 guides the air distributed and guided to the discharge passage 101b into the other intake passage 11 of the two left intake passages 11.
  • the control valve unit 100 distributes air for guiding itself to the intake passages 11 on the downstream side of the main valve 20, and the housing 101 is directly connected to the throttle body 10.
  • the upper two discharge passages 101b are in direct communication with the introduction passages 16 and 17 of the throttle body 10, and the lower two discharge passages with respect to the introduction passages 18 and 19 of the throttle body 10 are connected. Since 101b is communicated via rubber hoses 120 and 130, the intake control device with four intake passages 11 can be simplified, reduced in size, reduced in cost, etc. Etc. can be improved.
  • control valve unit 100 is arranged so as to be aligned along the axial directions S2, S3 of the throttle shaft (the main shaft 40 and the sub shaft 50) so as to substantially face the drive mechanisms 60, 70. Therefore, the force S can be used to improve the workability when assembling the drive mechanisms 60 and 70 and the control valve unit 100 while reducing the size of the device by consolidating the parts assembled to the throttle body 10.
  • control valve unit 100 is disposed between the main shaft 40 and the sub shaft 50 in the extending direction of the intake passage 11 (in the direction of the axis S1), the introduction passages 16 and 17 formed in the throttle body 10 are arranged. Such processing becomes easy.
  • the intake passage (for example, surge tank) force upstream of the sub-valve 30 is
  • the air guided to the suction passage 101a via the source RH collides with the end surface of the valve body 102 sliding in the communication passage 101c from the direction of the axis S4 and is bent in a substantially vertical direction and is evenly distributed radially. It is distributed and flows from the four communication ports 101 into the corresponding discharge passages 101b.
  • the air that has flowed into the upper two discharge passages 101b passes through the introduction passages 16 and 17, respectively, in the two intake passages 11 on the right side (region downstream of the main valve 20).
  • the air that is supplied directly to the two discharge passages 101b on the lower side passes through the rubber hoses 120 and 130, passes through the introduction passages 18 and 19, and enters the two intake passages 11 on the left (main (Region downstream of the valve 20).
  • the intake air can be evenly distributed and supplied to the four intake passages 11 corresponding to each cylinder.
  • the intake air can be evenly distributed and supplied to the four intake passages 11 corresponding to each cylinder.
  • the force shown in the case of having four intake passages 11 and four discharge passages 101b to correspond to a four-cylinder engine is not limited to this, but other three-cylinder or more engines
  • An intake control device having three or more intake passages 11 and three or more discharge passages 101b may be adopted so as to correspond to the above.
  • the force shown by the stepping motor 103 as the drive source of the valve body 102 is not limited to this, and other actuators may be used as long as the valve body 102 can reciprocate in the direction of the axis S4. May be.
  • the intake control device of the present invention achieves simple structure, miniaturization, cost reduction, improvement in outfitting, and the like, while providing idle air (idle) to a plurality of intake passages.
  • Air required for operation can be evenly distributed and supplied, so that it can be applied to a multi-cylinder engine mounted on a two-wheeled vehicle or a motor vehicle, as well as an engine mounted on other vehicles or a general-purpose engine. It is also useful for engines and the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

L'invention concerne un dispositif de commande d'admission d'air qui présente un corps de papillon (10) définissant quatre passage d'admission (11) et présentant des papillons des gaz (20, 30) et qui présente également une unité de soupape de commande (100) permettant d'introduire, lors du fonctionnement du moteur au ralenti, de l'air du côté amont vers le côté aval des passages d'admission (11), tout en forçant l'air à contourner les papillons des gaz. L'unité de soupape de commande (100) présente un passage d'admission (101a), un boîtier (101) définissant quatre passages de décharge (101b), et des soupapes de commande (102, 103) permettant de commander le montant d'air. Le corps de papillon (10) présente quatre passages d'introduction (16, 17, 18, 19). Le logement (101) est directement couplé au corps de papillon (10). Les deux passages de décharge supérieurs (101b) sont directement reliés aux passages d'introduction (16, 17), et les deux passages de décharge inférieurs (101b) sont reliés aux passages d'introduction (18, 19) à travers une tuyauterie (120, 130). Le dispositif peut être simplifié, réduit, produit à bas prix, et amélioré en ce qui concerne la facilité de montage.
PCT/JP2007/064934 2006-08-02 2007-07-31 Dispositif de commande d'admission d'air WO2008016025A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-210438 2006-08-02
JP2006210438A JP2008038635A (ja) 2006-08-02 2006-08-02 吸気制御装置

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WO2008016025A1 true WO2008016025A1 (fr) 2008-02-07

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JP (1) JP2008038635A (fr)
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR101184913B1 (ko) 2010-12-13 2012-09-20 엘지이노텍 주식회사 Ｏｉｓ 액추에이터 및 ｏｉｓ 액추에이터가 구비된 카메라 모듈

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Publication number Priority date Publication date Assignee Title
JP5616734B2 (ja) * 2010-09-30 2014-10-29 本田技研工業株式会社 多気筒内燃機関の吸気装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003129924A (ja) * 2001-10-23 2003-05-08 Yamaha Motor Co Ltd Ｖ型エンジン用スロットルボディ廻り構造

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003129924A (ja) * 2001-10-23 2003-05-08 Yamaha Motor Co Ltd Ｖ型エンジン用スロットルボディ廻り構造

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101184913B1 (ko) 2010-12-13 2012-09-20 엘지이노텍 주식회사 Ｏｉｓ 액추에이터 및 ｏｉｓ 액추에이터가 구비된 카메라 모듈

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